Tarox Rear Big Brake Kit 345mm Super Sport BBK for BMW E46 M3 & M3 CSL (3 Series) - Bolt-On Rear Brake Upgrade with F2000 Grooved Vented Discs & Monoblock Calipers - Track/Fast Road - B34GT-10

Rear Big Brake Upgrade for BMW E46 M3 and M3 CSL

Unlock serious stopping performance on your BMW with this rear big brake conversion engineered in Italy for the E46 M3, including CSL. Precision machined billet aluminium calipers and large diameter vented 345 mm discs deliver confident braking for fast road and track day use while retaining factory refinement and compatibility.

Key specs

• Caliper code: B34GT-10
• Rotor size: 345 mm vented single piece
• Axle: rear
• Minimum wheel clearance: 18 inch
• Vehicle fitment: BMW 3 Series E46 M3 including CSL, all variants

Why this upgrade

• Monoblock billet aluminium calipers for exceptional rigidity and pedal feel
• Multi piston architecture for even pad pressure, reduced taper wear and enhanced bite
• High thermal capacity 345 mm vented discs for fade resistance and consistent performance
• Direct fit solution that works with the OE master cylinder, servo and factory ABS or stability systems
• Hard anodised caliper finish in grey or black for durability, with colour options available on request

Pad compounds included at your choice

• Strada – ideal for fast road
• Corsa – fast road and occasional circuit use
• Competizione – dedicated track compound

Disc face styles

Default supply is the renowned F2000 groove pattern for excellent gas evacuation and pad refresh. Alternative face designs available on request at no extra cost include Sport Japan, D95 and C83 to suit your driving style and wheel aesthetic.

Built to order in Italy

Each kit is hand finished to specification using premium materials. Typical lead time is up to 14 days.

Real world results

We have installed this upgrade on customer E46 M3 builds and the feedback is consistently positive. Drivers report stronger initial bite, rock solid pedal consistency on spirited drives and superb confidence on track days without compromising everyday usability.

Fitting and support

Professional installation and setup available at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and friendly advice on pad compound and disc face selection to match your usage.

Care notes

• Hard anodised finishes are highly durable. If you choose colour anodising, avoid acidic wheel cleaners and remove wheels before cleaning for best results.
• Calipers are designed for long term use without regular strip downs thanks to sealed pistons and O-ring technology. Only trained technicians should disassemble.

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Images for illustration only.